Categories
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Recent Posts
- Rare Earth updates: recent research on why complex & intelligent life are rare in the Universe
- Book review of “Chip War” and the Fragility of microchips
- The tremendous material and energy toll of the digital economy
- Nuclear attack on U.S. could kill 90% of Americans
- What percent of Americans are rational?
- Book review of Lights Out. A Cyberattack. A Nation Unprepared. Surviving the Aftermath
- Off-Road vehicles & equipment need diesel fuel
- Book review of “Prime Movers of Globalization: the History & Impact of Diesel Engines & Gas Turbines”
- Mental Health. Coping with the future: notes from Jackson & Jensen’s “An Inconvenient Apocalypse”
- Tesla Semi trucks hauling corn chips
- What is the plan for an electric grid outage that lasts for months?
- Where to be? Links to Superfund, hazardous waste and other toxic sites in U.S.
- Why methanol cannot replace petroleum in shipping
- Why is everyone afraid of AI taking over? It makes stuff up!
- Do you want to eat, drink, or fly?
Category Archives: Biomass
Rare Earth updates: recent research on why complex & intelligent life are rare in the Universe
Preface. I think that Ward & Brownlee’s 2000 book “Rare Earth : Why Complex Life is Uncommon in the Universe” is one of the most important books ever written. There’s a good case to be made that our planet hosts … Continue reading
Posted in Evolution, Human Nature, Planetary Boundaries, Wood
Tagged combustion, complex life, evolution, intelligent life, photosynthesis, rare earth, venus, water
1 Comment
Do you want to eat, drink, or fly?
Preface. In this post the New York Times writes about renewable airplane fuel from corn ethanol, and questions whether there is enough water and a few other problems. First I’m going to summarize their issues with this, and then follow … Continue reading
Posted in Airplanes, Biofuels, Biomass EROI, Groundwater, Peak Water
Tagged aquifer, aviation fuel, corn, EROI, ethanol
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Why biofuels can not scale up to replace petroleum
Preface. This is my favorite paper on why we can’t replace crude oil with biofuels. Of course, oil is a biofuel. But alas, not renewable, since it took over 100 million years to make them. Every year we burn fossil … Continue reading
Posted in Biofuels, Oil, Peak Biofuels
Tagged peak biofuels, peak oil
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Deforestation in the news
Preface. I wrote in “Life after fossil fuels” that as energy declined, it would be hard to cut down distant forests with limited oil supplies. I thought this because even in Britain, so denuded of trees people turned to filthy … Continue reading
Posted in Deforestation, Pollution, Wood
Tagged climate change, collapse, deforestion, global warming, mercury, wildfire, wood
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Can we eat enough fried food for biodiesel to keep trucks running?
Fatberg from London sewer If the U.S. can’t make enough biodiesel from plants, then the question becomes: Can we step up our fast-food game? Can we eat more French fries? Biodiesel is already made from used cooking oil (11.5% of … Continue reading
Posted in Biodiesel, Farming & Ranching
Tagged biodiesel, fast food, fatberg
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Why it is hard to replace diesel with biodiesel
Biodiesel is the great hope, our main hope, the only renewable fuel of all the many options, and the closest to the diesel essential for rail, trucks, and ships to do the actual work of civilization. The U.S. produces over … Continue reading
Posted in Biodiesel, Food production, Oil, Peak Biofuels, Peak Food, Transportation, Water
Tagged biodiesel, diesel, EROI
1 Comment
Corn for ethanol & soy for biodiesel tremendously destructive
The Green Gold Rush to make biodiesel has begun in earnest in California. It would not be profitable without subsidies from LCFS credits, federal RIN D5 credits, and Blenders Tax Credits at $3.32 a gallon, which is enough to cover … Continue reading
Posted in Biodiesel, Peak Food, Pesticides, Soil, Water Pollution
Tagged aquifer depletion, biodiesel, corn, erosion, ethanol, pollution, soybeans, topsoil
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Dust Bowls
Preface. As if there weren’t enough to worry about, more Great Dust Bowls may be on the way. The irony is that some of it will likely be due to planting corn and soybeans to produce biofuels, yet another reason … Continue reading
Posted in Biofuels, Drought & Collapse
Tagged agriculture, drought, dust bowl, food shortage
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